Explosive-engine.



J. A. S. ANDERSON.

EXPLOSIVE ENGINE.

APPLICATION FILED FEB. 20, 1912.

1,055,693. Patnted'Mar.11,1913.

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.r P WITNESSES: M 4 INVENTOR), I f Jc/ZfdfizierJW, I BY W n n ATTORNEY.

EXPILOsivu-nivemE. 4

Specification'of Letter's'I'atent. Pa;

Application and ra s}; 120, 1512.] sriainierieeei Be it known" that'I,JOHN ALBERT. S. ANDERSON, a citizen of the United Statesof America,-andresidentof Springfield, 1n the county of Hamp'den'andState ofMassachu-- se'tts, have invented certain new and useful Improvements inExplosive-Engines, of

. which the following is a fu-ll, clear, and exact description Thisinvention relates to an improved double acting explosive engine, that isone in which the-cylinder has a reciprocatory piston therein. which isoperative to compress the gas in the opposite ends of the cylinder,

which gas when ignited is efiective to alternately drive the piston fromone end of the cylinder to the other. i

The objects of the invention are to provide in combination with thepiston cylinder a reciprocatoryu valve which is operative to insure theadmission of the gas alternately at opposite ends of the cylinder and togive an initial or partial compression to the .gas

opposite ends of the cylinder.

The initial compressionof thegas in sured by the operation ofthereciprocatory valve followed by the further compression in the cylinderby the reciprocatory piston therein'causes a better gaseous explosivecharge or mixture to be fired andthe reciprocatory valve also causespositive alternated. admission of the gas, at the proper times,therefor, into the opposite endsof the cylinder 'so that full or ampleexplosive charges are always provided against theopposite ends of thepiston.

' Another object is to provideimproved Y meansfor' insuring theconcurrentreciproca--'- tory movement of the cylinder piston and thepiston like valve. v Another object is -,to provide improved meansexternally of the cylinder and having. connection with the pistonthereinfor=the transinissionjof the power exertedj by the pi s'tonin thestrokes' 'thereof to the rotary engine shaft; -And another object is toso construct and combine the partsthat the .;doub le acting engine'isoneof extreme sim-' "r pli'city, comprising few components, and

, l susceptiblegof inexpensive"manufacture.

1 1 hinthecla1 s, .55

f The invention is delscribied in conjunctionf with the accompanyingdraw ngs aindis set of-the improved double acting explosive en- 3 In thedrawingszFigurel is" a plan view tion. of thesamei F ig, 3 isalverticall cross [longitudinal sec: 5

sectional -view.,of the engine as on line i Fig: c lfossisecfib l i ofthe isto-n likeyalverasrtaikenl abou nthe 7 H g- 2-: 2

7 Similar characters oi "1 erenindi te corresponding parts n all of theviews.

In the drawings, A represents. the engine body having a main cylinder Btherein closed at its opposite ends; and the engine body hasacylindrical .bore C which is also closed at'itsopp'osite end, t hesameplates or heads a a which close the c linder ends serving to alsoclose the ends 0 the bore C.

b bare a pair of ports which leadfrom cylinder. i

' The reciprocatory piston which is ofconsiderable length butnevertheless shorter" separated portions, in the length of the bore" t0separatedportionsln the length of the than the cylinder chamber, is of alength I greater. than I the distance between the said ports. I) b, andits adapted; in itsstroke; a

suitable time after the closing ofone of the; t ports 6 to openthe otherof saidports.

G represents the valveof cylindrical form fitted 1n the said here forlongitudinal recip rocation therein, the same being connected 'to, andto move in'nnison with thepiston'. .through means' of the bar-or stud dcom.

nected rigidly centrallyto the,- piston, extending at'right' angles to.;the axis thereof through the longitudinal slot in -the- -w-all of theengine body which separates the'c'ylinder chamber -B from the boreGwhich is I axially parallel therewith; such -=bar tor stud centrallypenetrating -or-engaging thepis'- ton-like-valvei The saidxcylindricalvalve has sidewise'op'eiiing ports 9 gnea'r the op-. posite ends thereofadapted for alternate registration with said cylinder-and-bore. con-jnecting ports b' b, their;distance of separation being greater thanthe-distance between {such ports I) bias shown'in Fig. 2-; and theseports are continued'in passages g :g which extend longitudinallythrough, and open to the end compression chambers G-"of the cylindricalvalve which are respectively opposite from the locations of-thezsidewise' open? mgports 9 of which theyj-are contin'uations.

nasmuclr as the middle fp'ortion of the! cylindrical" valve .ispenetrated by the stud or bar which has connection with the cyl--inderpis'ton, the course/of the passages g5,

9 is rendered somewhat tortuous.

2' represents a gas inlet passage or channel formed longitudinally 1nthe wall of the body which incloses the cylindrical bore C,

gine, the same here being represented as having but a single crank e. Tothis crank a yoke J is connected by pitman rod m, said yoke having astraddling relation to the cylinder, and it has connection centrally andtransversely with the cylinder piston through means of the cross bar Mtightly titted through the piston, its trunnion like extremities withwhich the yoke connects being freely movable in longitudinal openings orslots 0 through the opposite sides of the engine body, and which slotsare inter nally closed by the opposite sides of the piston.

In operation, assuming the piston is at the end of its rightward strokeand is about to move to the left,thc gas or charge will be admittedthrough the port 2' into the left hand end of the valve bore C. Thischarge will become compressed as tho cy-l inder piston moving to theleft carries the piston-like valve with it in a corresponding direction;and so soon as the parts D and G have moved to their extreme left, theright hand port 9 which is in communication through the continuingpassage e"dwise through the piston valve will come to registration withthe right hand cylinder bore eonnccting port Z) so that the gas whichhas become compressed in the left hand end 01' the bore becomes expelledinto the right hand end of the cylinder, the piston of which isuncovered to the right hand port I).

At the time the piston D has been moving to the left its first actionhas been to close the left hand port'so that the gas therein, whichmanifest has been admitted under compression from thevright hand end ofthe bore C,-becomes confined or closed against escape, and under theaction of the piston is still further compressed to the maximum degree.

The charge is fired in the ordinary manner, t t'representing spark plugsin conjunction with which the ordinary spark circuit apparatus andconnections are provided.

The action described is repeated in alternation, as manifest, so long asthe engine continues running,it, of course, being clearly understoodthat the piston acts substantially as a valve for the opening and cutoff of the exhaust through the ports f f.

1 claim i p 1. In a double acting explosive engine in combination, anengine body havin a main cylinder therein, having a cylindrical boreparallel with such cylinder and provided with ports opening fromseparated portions of the bore to separated portions of the cylinder, areciprocatory cylinder-piston longer than the distance between saidports, and adapted in its strokes after the closing of one of the portsto open the other of said ports, the cylindrical valve having endcompression chambers, longitudinally reciprocatory' in saidbore,-conneeted, and to move in unison with, the piston,having sidewiseopening ports therein, adapted for alternate registration with saidcylinder-and-bore connecting ports, and continued longitudinall ythrough, and opening at the end compression chambers ofsuch cylindricalvalve which are respectively opposite from the 10- cations of thesidewise opening ports thereof, means for the admission of gas into theoppositeends of said bore, means for the exhaust of the cylinder, andmeans externally of the cylinder and connected with the piston for thetransmission of the powerexerted by the piston. t

2. In a double acting explosive engine, in

combination, an engine body having a main cylinder therein, having acylindrical 'bore parallel with such cylinder, and provided with portsopening from separated portions 7 of the bore to separated portions ofthe cylinder, the reciprocatory cylinder-piston longer than the distancebetween said ports, and adaptedin its strokes after the closing of oneof the ports to open the other'of said ports, a cylindrical valve havingend compression chambers, reciprocatory in said bore,and connected, andto move in unison with the piston, having sidcwise opening portstherein, adapted for alternate registration with said cylinder and boreconnecting ports, and continued longitudinally through, and opening atthe end compression chambers of such cylindrical valve respectivelyopposite from the locations of the sidewise opening ports thereof, a gasinlet passage in the body having ports opening in the said bore atdifferent portions in the length thereof, and with which saidcylindrical valve has alternating opening and closing coaction, andexhaust passages lead ing from opposite end portions of the cylinder.

3. In a double acting explosive engine, in combination, an enginebody'having a main cylinder therein, havinga cylindrical hope parallelwith such main cylinder, provided with a longitudinal slot connectingthe cylinder and bore and provided with ports beyond the opposite endsof said slot and which connect the bore and cylinder, a reciprocatorypiston in said cylinder, longer than the distance between said ports,and operative to alternately open and close the same, a cylindricalvalve having end compression chambers longitudinally reciprocatory insaid bore having sidewise opening ports therein for alternateregistration with said cylinder and bore connecting ports and continuedlongitudinally through and opening at the end compression chambers ofsuch cylindricalvalve which are respectively opposite from the locationsof said sidewise opening ports, a member rigidly connected w th thecylinder piston extending through said slot and having a rigidconnection with the c lindrical valve, means for the admission 0 gasinto the opposite ends of said bore, means for the exhaust of thecylinder, and means externally of the cylinder and connected with thepiston for the transmission of the power exerted by the piston.

4. In combination, a cylinder body a piston chamber and a valve chamberparallel therewith, said cylinder having an exhaust port locatedmedially of its ends and copies of this patent may be obtained for fivecents each, by v Washington, D. 0.

having passages extending from said exhaust port and communicating withthe opposite ends of the piston chamber, the u per portion of the wallof said piston chamliier dividing the valve chamber therefrom and havinga longitudinal central slot and fuel passages located endwise thereof,a' piston movable in the piston chamber and adapted to close one of theexhaust passages and one of the fuel passages and to open the remainingexhaust and fuel passage, a valve movable in the valve chamber andhaving end chambers, and passages extehding each chamber through thewall of the other end chamber and spaced from each other and adapted tocommunicate with said upper --passagesinthe piston chamber wall, a rodconnecting the piston to the valve through said slot, m ans forsupplying fuel to the opposit-eendsof :the valve chamber.

Signed by me at Springfield, Mass, in presence of two subscribingwitnesses.

JoriN ALBERT s. ANDERSQN.

Witnesses: R. Dnrsconn, v I M. S. BELLOWS.

addressing the Commissioner of Patents,

from one end

